A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
A dairy cow can produce more milk when listening to music.
446
The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
8
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
When cats are happy, they may squeeze their eyes shut.
10
When dragonflies mate, their tails form a love heart.
22